Finding the Fourth Proportional to 2,399.24, 3,597.64 and 1,099.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.24 : 3,597.64 = 1,099.60 : x
2. Step 2: Convert to fraction form
   2,399.24/3,597.64 = 1,099.60/x
3. Step 3: Cross multiply
   2,399.24x = 3,597.64 × 1,099.60
4. Step 4: Simplify right side
   2,399.24x = 3,955,964.94
5. Step 5: Solve for x
   x = 3,955,964.94/2,399.24
6. Step 6: Final answer
   x = 1,648.84